“Turn on Wi-Fi calling – This feature is not available with this device.”

That page implies exactly the opposite.

LanceMiller

“Motorola’s Moto X, like all Android phones, is at the mercy of the carriers” is exactly why Motorola / Google blew it bad. This phone should have been released on the announcement day via the “Play Store” & sold for the rumored $299 / $349. Then, like they did with the Nexus 4, the carriers could have bought it for the same price that the carriers will be currently paying, $349. this way the release isn’t negatively tied to Motorola but to each carrier for their failure to expedite the stocking of the moto x.